Publication: Ultrastructural and biochemical analysis of epidermal xanthophores and dermal chromatophores of the teleost Sparus aurata
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Date
1999
Authors
Ferrer, C. ; Solano, F. ; Zuasti, A.
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
We have studied the pigmentary system of
the teleost Sparus aurata skin by electron microscopy
and chromatographic analysis. Under electron
microscopy, we found the dermis to contain the three
major types of recognized chromatophores: melanophores,
xanthophores and iridophores. Melanophores
were more abundant in the dorsal region, whereas the
iridophores were more abundant in the ventral region.
The most important discovery was that of epidermal
xanthophores. Epidermal xanthophores were the only
chromatophores in the epidermis, something only found
in S. azirara and in a teleost species living in the Antartic
sea. In contrast, the biochemical analysis did not
establish any special characteristics: we found pteridine
and flavin pigments located mostly in the pigmented
dorsal region. Riboflavin and pterin were two of the
most abundant coloured pigment types, but other
colourless pigments such as xanthopterin and
isoxanthopterin were also detected.
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